Porphyrocrinus
Porphyrocrinus is a genus of crinoids within the family Phrynocrinidae. Members of this genus have been found from 2103 to 4240 meters below sea level.
Species
Porphyrocrinus daniellalevyae Porphyrocrinus incrassatus Porphyrocrinus thalassae- ''Porphyrocrinus verrucosus''